Darkrai-EX #88 from Legendary Treasures is a reverse holo holo_rare card that currently sells for about $8.84 ungraded, with graded copies ranging from $19.91 at grade 7 to $510 at grade 10. A grade 10 copy sells for around $510, about 58× the $8.84 raw price, so high-grade copies are worth grading.